2W11

Structure of the L-2-haloacid dehalogenase from Sulfolobus tokodaii


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.9 Å
  • R-Value Free: 0.217 
  • R-Value Work: 0.163 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Biochemical and Structural Studies of a L-Haloacid Dehalogenase from the Thermophilic Archaeon Sulfolobus Tokodaii.

Rye, C.A.Isupov, M.N.Lebedev, A.A.Littlechild, J.A.

(2009) Extremophiles 13: 179

  • DOI: 10.1007/s00792-008-0208-0
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Haloacid dehalogenases have potential applications in the pharmaceutical and fine chemical industry as well as in the remediation of contaminated land. The L: -2-haloacid dehalogenase from the thermophilic archaeon Sulfolobus tokodaii has been cloned ...

    Haloacid dehalogenases have potential applications in the pharmaceutical and fine chemical industry as well as in the remediation of contaminated land. The L: -2-haloacid dehalogenase from the thermophilic archaeon Sulfolobus tokodaii has been cloned and over-expressed in Escherichia coli and successfully purified to homogeneity. Here we report the structure of the recombinant dehalogenase solved by molecular replacement in two different crystal forms. The enzyme is a homodimer with each monomer being composed of a core-domain of a beta-sheet bundle surrounded by alpha-helices and an alpha-helical sub-domain. This fold is similar to previously solved mesophilic L: -haloacid dehalogenase structures. The monoclinic crystal form contains a putative inhibitor L: -lactate in the active site. The enzyme displays haloacid dehalogenase activity towards carboxylic acids with the halide attached at the C2 position with the highest activity towards chloropropionic acid. The enzyme is thermostable with maximum activity at 60 degrees C and a half-life of over 1 h at 70 degrees C. The enzyme is relatively stable to solvents with 25% activity lost when incubated for 1 h in 20% v/v DMSO.


    Related Citations: 
    • An Order-Disorder Twin Crystal of L-2-Haloacid Dehalogenase from Sulfolobus Tokodaii
      Rye, C.A.,Isupov, M.N.,Lebedev, A.A.,Littlechild, J.A.
      (2007) Acta Crystallogr.,Sect.D 63: 926


    Organizational Affiliation

    Henry Wellcome Building for Biocatalysis, School of Biosciences, University of Exeter, Stocker Road, Exeter EX4 4QD, UK.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
2-HALOALKANOIC ACID DEHALOGENASE
A, B
206Sulfurisphaera tokodaii (strain DSM 16993 / JCM 10545 / NBRC 100140 / 7)Mutation(s): 0 
Gene Names: ST2570
EC: 3.8.1.2
Find proteins for Q96XE7 (Sulfurisphaera tokodaii (strain DSM 16993 / JCM 10545 / NBRC 100140 / 7))
Go to UniProtKB:  Q96XE7
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
2OP
Query on 2OP

Download SDF File 
Download CCD File 
A, B
(2S)-2-HYDROXYPROPANOIC ACID
C3 H6 O3
JVTAAEKCZFNVCJ-REOHCLBHSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.9 Å
  • R-Value Free: 0.217 
  • R-Value Work: 0.163 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 127.589α = 90.00
b = 58.082β = 97.23
c = 51.192γ = 90.00
Software Package:
Software NamePurpose
REFMACrefinement
MOLREPphasing
SCALEPACKdata scaling
DENZOdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2008-12-09
    Type: Initial release
  • Version 1.1: 2011-05-08
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance